Joint Army-Navy specification JAN-S-647 covers a mummy-shaped sleeping bag made of wool cloth.

History

• 1961-09-20: cancelled ^[1]
• 1948-07-29: JAN-S-647, SLEEPING-BAG, WOOL, superseded PQD 273E. ^[2]

Notes

1. ↑ https://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=76526
2. ↑ https://hdl.handle.net/2027/uiug.30112107816685?urlappend=%3Bseq=190